Locomotive sander attachment



- UNITED STATES PATENTOFFICE-v IIIACII J. FOWLER, or IioANoKE, VIRGINIA.

LocoMo'rIvE SANDER'A'ITAGHMENT.

To all whom it may concern.

Be it known that I, yMACK J. FoWLER, a citizen of the United States,residing at Roanoke, in the county of Roanoke. and State of Virginia,have invented new and useful Improvements in Locomotive SanderAttachments, of which the following is a specification.

This invention relates to sanding devices especially designed for useupon locomotives, an object of the invention being to provide a novelform of nozzle for discharging the sand, wherein the amount of saidsupplied to the rails may be regulated as required.

Another object is the provisionof a nozzle for the above purpose inwhich the discharge opening may be kept free from obstruction so as toinsure proper operation at all times.

. With theabove and other objects in view, the invention`furtherincludes the following novel features and details ofconstruction., to be hereinafter more fully described, illustrated inthe accompanying drawings and pointed Vout in the appended claims.

In the drawings Figure l is a fragmentary sectional view of a portion.of a locomotive Vsanding apparatus showing the improved nozzle.

Fig. 2 is a detail vertical sectional view.

Fig. 3 vis a horizontal section on the line 3 3 of Fig. 1.

Referring in detail to the drawings, wherein like characters ofreference denote corresponding parts, the reference character 10indicates a supply pipe which has one end connected to a suitablecontainer, such as the sand dome 11 of a locomotive.

The opposite end of the pipe 10 is detachably connected to the improvednozzle, the latter being indicated at 12. This nozzle is shown assubstantially L-shaped and in.- cludes a vertical arm 13 and ahorizontal arm 14:, the former communicating with the pipe 10 so thatthe sand will. be deposited into the bore 15 of the arm 13. The arm 12is provided with passages 16 and'17, the inner ends of which are spacedapart and communicate with the bore 15. The passages 16 and 17 are ofdifferent diameters and their outer ends merge into a common dischargepassage 18, which communicates with the pipe 19 for the discharge ofthesand. An additional passage 20 has its inner end in communication withthe'discharge Specification of Letters Patent. Patented Allg'. 23, 1921.Application mea April 2s, 1921. s,

passage 18, while its outer end has secured therein one end of a pipe 21which communicates with a suitable air supply.

Extending within the bore 15 are air nozzles 22 and 23, the former beingof greater size than the latter land being positioned in a line with theinner end of the passage 16, but spaced therefrom. The nozzle 13 ispositioned in aline with the inner end of the passage 17 which isrelatively. close to the said passage. The nozzles 22'and 23 areremovably secured in nipples 24, which are detachably connected to the'arm 13, while supply pipes 25 are also connected to the nipples 24 toprovide-means for supplying air to the nozzles 22 and 23. A plug 26 isremovably positioned within the bottom of the bore 15 to provide meansfor cleaning-.the latter.

In supplying sand to car rails, it is necessary to supply a properamount under different conditions, to :obtain a proper traction. Whenthe locomotive starts, a relatively` when the locomotive is under waythis amount should be reduced, as it not only wastes the same through anover supply, but the said over supply acts to retard in some large'quantity of sand must be supplied, but i measure the movement of thelocomotive. v

This, the present form of nozzle overcomes.

In the operation of the invention air is supplied to the nozzle underpressure and may be controlled by any desired means, for example, bymeans of a three-.way air valve (not shown). This valve upon its initialopening supplies air through the pipe 21 and the passage 2O and servesto force out any obstruction within the discharge end of the Y nozzleand to keep the same thoroughly clean for the free passage of the sand.A further movement of the valve would then supply air to either thenozzle 22 or 23 as desired so as to force the sand which lies within thebottom of the bore 15 through either of the passages 16 or 17. As thedistance between th-e inner end of the passage 17 and the nozzle 13isrelatively small, only asmall quantity of sand islocated before thepassage 17, so that for this reason andv due to the rstricted diameterof the said passage 17, a relatively small quantity of sand will beejected. The amount of sand between the of the passage 16 and the sizeof the said passage permits an increased quantity of sand to passthrough the nozzle When the air is directed therethrough.

The invention is susceptible of various changes in its form, proportionsand minor details of construction and the right is herein reserved tomake suchV changes as properly :tall Within the scope of the appendedclaims.

Having described the invention What lis claimed is 1. The combinationwith a sanding apparatus, of a discharge nozzle comprising asubstantially L-shap'ed member including a vertical leg and a horizontalleg and adapted for connection with a sand supply, channels provided inthe horizontal leg, said channels being spaced apart at their inner endsand having their outer ends communieating with a common outlet and ,airnozzles extending Within the vertical arm of the L-shapedmember andarranged to discharge air into the inner ends of each of the channels.

2. The combinationwvith a sanding apparatus, of a discharge nozzlevcomprising a substantially L-shaped member includinga vertical leg anda horizontal leg adapted for connection With a sand supply, channels cicdifferent diameters provided in the horizontal leg, said channels beingspaced apart at their inner ends and` havingV their outer endscommunicating With va commony outlet and air nozzles .of relativelydiilerent sizes extending Within the vertical arm of 3. The combinationwith a sanding apparatus, of Va' discharge nozzle comprising asubstantially L-shaped member including a vertical leg and a horizontalleg adapted for connection With a sand supply, channels of differentdiameters provided in the horizon- 'tal' leg, said4 channels beingspaced apart at their inner ends and having their outer endscommunicating with a common outlet and air nozzles of relativelydifferent sizes eX- tending Within the vertical arm of vthe L- shapedmember and vspaced relatively different from the inner ends of thechannels to discharge air into the latter.

4. :The combination Witha 'sanding appara'tus, of a discharge nozzlecomprising a substantially Lshaped member includingr a vertical leg anda horizontal leg and adapted for connection -vvith a sand supply,channels provided in the horizontal leg, said channels being spacedapart atitheir inner ends and having their outer ends communicating Withthe common outlet, air nozzles extending Within the vertical arm of theLeshaped memberV and arranged todischarge air into the inner ends of`each of the channels and.

MACK J. roWLnR.

